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Workflows
Coding workflows · Strict duration tokens
03
A concrete starting point
Parse an ASCII integer followed by ms, s, m or h into milliseconds capped at one day. Check zero and the day boundary, rejecting leading zeros, fractions, spaces and unknown units.
Define the change
Describe the input, expected output and boundaries that must stay intact.
Inspect the work
Review the proposed edits and any commands before relying on their result.
Check the outcome
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
Strict duration tokens
A concrete starting point
import re
def duration_ms(text):
if not isinstance(text, str):
raise ValueError("duration.text")
match = re.fullmatch(r"(0|[1-9][0-9]{0,8})(ms|s|m|h)", text)
if not match:
raise ValueError("duration.syntax")
result = int(match[1]) * {"ms": 1, "s": 1000, "m": 60000, "h": 3600000}[match[2]]
if result > 86400000:
raise ValueError("duration.range")
return resultThe example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.